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Single-Dc Supply Thermometer

2017-08-18 16:49  
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Using a J-type thermocouple, this circuit can indicate temperatures from -350?° to 400?° with a 6-V supply or -
Single-Dc Supply Thermometer

50 to 100?° with a 3-V lithium battery. The AD954 produces 10 mV/?°C output to the MAX 138 digital voltmeter chip, which drives the LCD display.

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